Duvet Buying Guide — What Size Duvet Do You Need?

Luxury duvet by The Fine Bedding Company
The Fine Bedding Company

A duvet is a relatively long term investment, so it’s worth taking a short time to figure out the best filling and size for you and your bed. We’ve put together a definitive buying guide to help you get the best night’s sleep.

Duvet Filling


Down The most luxuriously soft duvet filling that money can buy, down is the perfect choice if you're looking to invest in a high-quality, long-lasting duvet. Down is made from the fluffiest feathers of the bird's breast area, making it a sumptuously soft and light choice - while retaining unbeatable warmth.


Feather duvet fillings are, like down, warm and breathable. The main difference is that the feathers used here are coarser and larger, meaning your duvet is not as soft and light as down. Feather duvet fillings are substantially cheaper than down.

Feathers and Down

For a practical compromise between warmth, softness and affordability, a feather and down combination duvet is a safe bet. These duvets mix strong, warm feathers and light, soft down to create a comfortable duvet for all seasons.



Microfibre fillings are made up of ultra-fine strands of polyester, woven together with pockets of air that trap warmth. Microfibre fillings are ultra-soft and lightweight, and are the most sensible choice for allergy sufferers. Synthetic duvets can also be washed at home.


Hollowfibre fillings are similar to microfibre; they are incredibly warm. However hollowfibre fillings are more wiry and less supple than microfibre, so it definitely a matter of personal preference.


Silk filled duvets are the ultimate choice for a luxury synthetic filling. These duvets are hypoallergenic and naturally dust mite resistant - perfect for asthma and allergy sufferers.

Tog Rating

Luxury duvet
The Fine Bedding Company

A duvet's tog rating is a measure of its ability to trap air and keep you warm and cosy at night. The higher the tog rating, the warmer your duvet. Below are some of the most common tog ratings for duvets at Amara:

  • 4.5 tog rating This duvet is ultra-lightweight and breathable, ideal for summer nights

  • 10.5 tog rating A duvet with this tog rating will be perfect for all seasons, or as a duvet to see you through spring and autumn.

  • 13.5 tog rating One of the warmest duvets you can buy, a duvet of this tog rating is perfect for cold nights or if you prefer to be kept very warm and snug in bed.

What size Duvet do you need?

This can depend on the size of your bed, but also your height. You need a duvet that’s about 20-30cm longer than you are tall - which will prevent you from getting cold toes. As a general guide for getting a duvet to fit your bed size, take a look at this table.

Duvet Sizes

Duvet Size Measurement

Single Duvet 135x200cm (53 x 73 inches approx)

Double Duvet 200x200cm (78 x 78 inches approx)

King Duvet 230x220cm (90 x 86 inches approx)

Super King Duvet 260x220cm (102 x 86 inches approx)

What type of pillow is the best?

Luxury white pillows

Fillings for pillows can be very similar, if not identical to the duvet fillings. However, there are some exceptions. You have the usual microfibre, or hollowfibre options, but you can find memory foam, goose/duck down, miniball clusters and even water pillows on the market. Our favourites are:

Pillows also coming three firmness ratings: soft, medium and firm. It really comes down personal preference, but it’s often worth considering that you might want a firm pillow to sleep on, and perhaps a softer pillow for sitting up in be with. Take a look at our pillow buying guide for more details.

To find out more, take a look at our guide for mattress toppers and take a look at our full bedroom range.